1980336436751 has 2 divisors, whose sum is σ = 1980336436752. Its totient is φ = 1980336436750.

The previous prime is 1980336436733. The next prime is 1980336436907. The reversal of 1980336436751 is 1576346330891.

It is a weak prime.

It is an emirp because it is prime and its reverse (1576346330891) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1980336436751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1980336436051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 990168218375 + 990168218376.

It is an arithmetic number, because the mean of its divisors is an integer number (990168218376).

Almost surely, 2^{1980336436751} is an apocalyptic number.

1980336436751 is a deficient number, since it is larger than the sum of its proper divisors (1).

1980336436751 is an equidigital number, since it uses as much as digits as its factorization.

1980336436751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9797760, while the sum is 56.

The spelling of 1980336436751 in words is "one trillion, nine hundred eighty billion, three hundred thirty-six million, four hundred thirty-six thousand, seven hundred fifty-one".